Impulsive Rendezvous Maneuvers in the Restricted Three-Body Problem

The present international cooperation scenario for robotic and human space exploration \nis focusing on mission architectures that revolve around building and exploiting a crew-tended \ncis-lunar space station, known as Lunar Orbital Platform-Gateway. Candidate orbits for this \nvehicle are the near rectilinear halo orbits (NRHO). As a consequence, the capability to inject in \nNRHO and perform rendezvous and docking or berthing maneuvers with a station in NRHO is \nkey to many future exploration missions. This paper analyzes the dynamic behavior of relative \nchaser-target motion in NRHO under the influence of impulsive thrust maneuvers with respect \nto a local-vertical local-horizon (LVLH) frame. Rendezvous trajectories are defined to achieve \nrendezvous in both the periselene and aposelene regions of the NRHO, which make use of \norbital maneuvers defined using the adjoint method, to address the presence of time-varying \nparameters in the guidance problem.